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makvit [3.9K]
3 years ago
14

The probability that Paula passes Mathematics is 2/3, and the probability that she passes English is 4/9. If the probability tha

t she passes both courses is 1/4, what is the probability that she will pass at least one course?
Mathematics
1 answer:
Anestetic [448]3 years ago
8 0

Answer:

31/36

Step-by-step explanation:

P(E or M) = P(E) + P(M) - P(E & M)

= (2/3) + (4/9) - (1/4)

= 31/36

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Answer:

10%

Step-by-step explanation:

The computation of the percentage of bulbs that switched on incandescent is as follows;

Let us assume the incandescent be I

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Now the equation is

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0.41I + 0.9F = 0.8I + 0.8F

So here

0.4I = 0.1F

Now the percentage would be for incandescent in the case of switched on is

= 0.4I ÷  0.8(I+F) × 100

= 0.1F ÷ 1F

= 10%

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4 years ago
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Hope I could help! :)


8 0
3 years ago
Which of the following observations of children is the most objective?
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I'd say D. A uses words that suggest the author has an opinion of Alex's behavior that is unfavorable. B uses the words "obviously less disciplined" to refer to Sue, which is clearly an opinion and also rather unfavorable. C makes assumptions as to Joan's emotions toward Mary, which cannot be ascertained objectively without asking Joan. D is a clear statement of the facts without embellishment.

EDIT: Note that the definition of objective is not influenced by opinions or beliefs, as opposed to subjective.
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